Depending on the length of the backpacking trip and the mileage I do a day I like to have something else other than trailmix and salami (these are great choices as well). I usually have tortillas and almond or peanut butter packets which can be used to make nut butter sandwiches with dried bananas or jelly (in packets). Some grocery stores (Target usually has several varieties) have small cans of tune with a separate packet of ritz crackers (I like the spicy tuna). These make great lunch while backpacking as well (have it with some trial mix or dried fruit). If you want to go fancy you can get small packets of hummus and make a tortilla with hummus and a fresh cucumber 🙂
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I have used REI Adventures last year to go to Africa - guided hike up the Kilimanjaro Mountain. The trip was pricy however, I think the cost and trip was worth every penny! Everything was taken care of for the group, from the pick up at the airport, taking care of obtaining visas for the stay in Tanzania to getting to the hotel, preparation for the hike and the guidance and care during the hike. The guides, the helpers- everyone was tremendously helpful and made the the trip an extraoridinary experience. I'd highly recommend REI Adventures! Other companies I have heard about are Adventure Unbound and AdventureWomen but I have not done any trips with them so cannot give more insight.
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